Bid these

[Cyberyeti]

[hv=pc=n&s=sak74hat6d75ct874&n=sj953hdak98cakq95&d=w&v=n&b=12&a=p1c3hd]266|200[/hv]

 

Take it from here:

 

a) W passes

b) W bids 4♥

 

Scoring is IMPs

[mgoetze]

North bids 5♥, South bids 5♠, all pass.

[Zelandakh]

North bids 5♥, South bids 5♠, all pass.

Is South really bidding 5♠ here with 5 key controls?

[rhm]

Is South really bidding 5♠ here with 5 key controls?

He might since doubling 3♥ should show at least game invitational values already and the ace of hearts is not particularly useful.

But I would not pass 5♠.

I follow up with 5NT (pick a slam)

 

Rainer Herrmann

[mgoetze]

Is South really bidding 5♠ here with 5 key controls?

In case a), where South knows 2 of those controls are worthless, definitely yes. I admit it might be harder in case b).

[the_clown]

Agree with Rainer South basically denied a double stop in hearts when he failed to bid 3N over 3♥. Its quite difficult to construct a hand consistent with the double where slam would be less than 50%. The biggest danger I can see it if the spade Ace is missing and they can take a ruff in the side suit (clubs or spades). But even if this is the case they will need to find the right lead.